Suppose that the number of cars manufactured at an automobile plant varies jointly as the number of workers and the time they work. if 85 workers can produce 136 cars in 8 hours, find the number of workers that can produce 175 cars in 7 hours.

Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a standard deviation of $0.10. using chebyshev's theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.41 and $4.01? round your answer to one decimal place.